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windows-nt/Source/XPSP1/NT/admin/activec/samples/sdksamples/wmi/people.cpp
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

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//==============================================================;
//
// This source code is only intended as a supplement to
// existing Microsoft documentation.
//
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
//
//
//==============================================================;
#include <stdio.h>
#include "People.h"
#include <commctrl.h>
#include <comdef.h>
#include <windowsx.h>
const GUID CPeoplePoweredVehicle::thisGuid = { 0x2974380d, 0x4c4b, 0x11d2, { 0x89, 0xd8, 0x0, 0x0, 0x21, 0x47, 0x31, 0x28 } };
const GUID CBicycleFolder::thisGuid = { 0xef163732, 0x9353, 0x11d2, { 0x99, 0x67, 0x0, 0x80, 0xc7, 0xdc, 0xb3, 0xdc } };
const GUID CSkateboardFolder::thisGuid = { 0xef163733, 0x9353, 0x11d2, { 0x99, 0x67, 0x0, 0x80, 0xc7, 0xdc, 0xb3, 0xdc } };
const GUID CIceSkateFolder::thisGuid = { 0xf6c660b0, 0x9353, 0x11d2, { 0x99, 0x67, 0x0, 0x80, 0xc7, 0xdc, 0xb3, 0xdc } };
const GUID CBicycle::thisGuid = { 0xef163734, 0x9353, 0x11d2, { 0x99, 0x67, 0x0, 0x80, 0xc7, 0xdc, 0xb3, 0xdc } };
const GUID CSkateboard::thisGuid = { 0xef163735, 0x9353, 0x11d2, { 0x99, 0x67, 0x0, 0x80, 0xc7, 0xdc, 0xb3, 0xdc } };
const GUID CIceSkate::thisGuid = { 0xf6c660b1, 0x9353, 0x11d2, { 0x99, 0x67, 0x0, 0x80, 0xc7, 0xdc, 0xb3, 0xdc } };
#define WM_WMI_CONNECTED WM_APP // only sent to CBicycleFolder::m_connectHwnd
#define WM_REFRESH_EVENT WM_APP+1 // only sent to CBicycleFolder::m_connectHwnd
//==============================================================
//
// CEventSink implementation
//
class CEventSink : public IWbemObjectSink
{
public:
CEventSink(HWND hwnd) : m_hwnd(hwnd){}
~CEventSink(){};
STDMETHOD_(SCODE, Indicate)(long lObjectCount,
IWbemClassObject **pObjArray)
{
// Not actually using the pObjArray. Just need a trigger for the
// refresh.
::SendMessage(m_hwnd, WM_REFRESH_EVENT, 0, 0);
return S_OK;
}
STDMETHOD_(SCODE, SetStatus)(long lFlags,
HRESULT hResult,
BSTR strParam,
IWbemClassObject *pObjParam)
{
// SetStatus() may be called to indicate that your query becomes
// invalid or valid again ussually caused by multithreading 'situations'.
return S_OK;
}
// IUnknown members
STDMETHODIMP QueryInterface(REFIID riid, LPVOID* ppv)
{
if(riid == IID_IUnknown || riid == IID_IWbemObjectSink)
{
*ppv = this;
// you're handing out a copy of yourself so account for it.
AddRef();
return S_OK;
}
else
{
return E_NOINTERFACE;
}
}
STDMETHODIMP_(ULONG) AddRef(void)
{
return InterlockedIncrement(&m_lRef);
}
STDMETHODIMP_(ULONG) Release(void)
{
// InterlockedDecrement() helps with thread safety.
int lNewRef = InterlockedDecrement(&m_lRef);
// when all the copies are released...
if(lNewRef == 0)
{
// kill thyself.
delete this;
}
return lNewRef;
}
private:
long m_lRef;
HWND m_hwnd;
};
//==============================================================
//
// CPeoplePoweredVehicle implementation
//
//
//----------------------------------------------------------
#define TEMP_BUF 255
bool CBicycleFolder::ErrorString(HRESULT hr,
TCHAR *errMsg, UINT errSize)
{
TCHAR szError[TEMP_BUF] = {0};
TCHAR szFacility[TEMP_BUF] = {0};
IWbemStatusCodeText * pStatus = NULL;
// initialize buffers.
memset(errMsg, 0, errSize * sizeof(TCHAR));
HRESULT hr1 = CoInitialize(NULL);
SCODE sc1 = CoCreateInstance(CLSID_WbemStatusCodeText,
0, CLSCTX_INPROC_SERVER,
IID_IWbemStatusCodeText,
(LPVOID *) &pStatus);
// loaded OK?
if(sc1 == S_OK)
{
BSTR bstr;
sc1 = pStatus->GetErrorCodeText(hr, 0, 0, &bstr);
if(sc1 == S_OK)
{
#ifdef UNICODE
wcsncpy(szError, bstr, TEMP_BUF-1);
#else
wcstombs(szError, bstr, TEMP_BUF-1);
#endif UNICODE
SysFreeString(bstr);
bstr = 0;
}
sc1 = pStatus->GetFacilityCodeText(hr, 0, 0, &bstr);
if(sc1 == S_OK)
{
#ifdef UNICODE
wcsncpy(szFacility, bstr, TEMP_BUF-1);
#else
wcstombs(szFacility, bstr, TEMP_BUF-1);
#endif UNICODE
SysFreeString(bstr);
bstr = 0;
}
// RELEASE
pStatus->Release();
pStatus = NULL;
}
else
{
::MessageBox(NULL, _T("WBEM error features not available. Upgrade WMI to a newer build."),
_T("Internal Error"), MB_ICONSTOP|MB_OK);
}
// if not msgs returned....
if(_tcslen(szFacility) == 0 || _tcslen(szError) == 0)
{
// format the error nbr as a reasonable default.
_stprintf(errMsg, _T("Error code: 0x%08X"), hr);
}
else
{
// format a readable msg.
_stprintf(errMsg, _T("%s: %s"), szFacility, szError);
}
if(hr1 == S_OK)
CoUninitialize();
return (SUCCEEDED(sc1) && SUCCEEDED(hr1));
}
CPeoplePoweredVehicle::CPeoplePoweredVehicle()
{
children[0] = new CBicycleFolder;
children[1] = new CSkateboardFolder;
children[2] = new CIceSkateFolder;
}
CPeoplePoweredVehicle::~CPeoplePoweredVehicle()
{
for (int n = 0; n < NUMBER_OF_CHILDREN; n++)
delete children[n];
}
HRESULT CPeoplePoweredVehicle::OnExpand(IConsoleNameSpace *pConsoleNameSpace, IConsole *pConsole, HSCOPEITEM parent)
{
SCOPEDATAITEM sdi;
if (!bExpanded) {
// create the child nodes, then expand them
for (int n = 0; n < NUMBER_OF_CHILDREN; n++) {
ZeroMemory(&sdi, sizeof(SCOPEDATAITEM) );
sdi.mask = SDI_STR | // Displayname is valid
SDI_PARAM | // lParam is valid
SDI_IMAGE | // nImage is valid
SDI_OPENIMAGE | // nOpenImage is valid
SDI_PARENT | // relativeID is valid
SDI_CHILDREN; // cChildren is valid
sdi.relativeID = (HSCOPEITEM)parent;
sdi.nImage = children[n]->GetBitmapIndex();
sdi.nOpenImage = INDEX_OPENFOLDER;
sdi.displayname = MMC_CALLBACK;
sdi.lParam = (LPARAM)children[n]; // The cookie
sdi.cChildren = 0;
HRESULT hr = pConsoleNameSpace->InsertItem( &sdi );
_ASSERT( SUCCEEDED(hr) );
}
}
return S_OK;
}
CBicycleFolder::CBicycleFolder() :
m_connectHwnd(0),
m_threadId(0), m_thread(0),
m_doWork(0), m_threadCmd(CT_CONNECT),
m_running(false), m_ptrReady(0),
m_pStream(0), m_realWMI(0),
m_pResultData(0), m_pStubSink(0),
m_pUnsecApp(0)
{
WNDCLASS wndClass;
ZeroMemory(&wndClass, sizeof(WNDCLASS));
wndClass.lpfnWndProc = WindowProc;
wndClass.lpszClassName = _T("connectthreadwindow");
wndClass.hInstance = g_hinst;
ATOM atom = RegisterClass(&wndClass);
m_connectHwnd = CreateWindow(
_T("connectthreadwindow"), // pointer to registered class name
NULL, // pointer to window name
0, // window style
0, // horizontal position of window
0, // vertical position of window
0, // window width
0, // window height
NULL, // handle to parent or owner window
NULL, // handle to menu or child-window identifier
g_hinst, // handle to application instance
(void *)this); // pointer to window-creation data
if (m_connectHwnd)
SetWindowLong(m_connectHwnd, GWL_USERDATA, (LONG)this);
InitializeCriticalSection(&m_critSect);
m_doWork = CreateEvent(NULL, FALSE, FALSE, NULL);
m_ptrReady = CreateEvent(NULL, FALSE, FALSE, NULL);
EnterCriticalSection(&m_critSect);
// NOTE: I'm connecting real early. You may want to connect from some other place.
m_threadCmd = CT_CONNECT;
SetEvent(m_doWork);
m_thread = CreateThread(NULL, 0, ThreadProc, (void *)this, 0, &m_threadId);
LeaveCriticalSection(&m_critSect);
}
CBicycleFolder::~CBicycleFolder()
{
EmptyChildren();
if(m_pResultData)
{
m_pResultData->Release();
m_pResultData = 0;
}
if(m_pStubSink)
{
IWbemServices *service = 0;
HRESULT hr = GetPtr(&service);
if(SUCCEEDED(hr))
{
service->CancelAsyncCall(m_pStubSink);
service->Release();
service = 0;
}
m_pStubSink->Release();
m_pStubSink = NULL;
}
if(m_pUnsecApp)
{
m_pUnsecApp->Release();
m_pUnsecApp = 0;
}
StopThread();
if(m_connectHwnd != NULL)
DestroyWindow(m_connectHwnd);
UnregisterClass(_T("connectthreadwindow"), NULL);
DeleteCriticalSection(&m_critSect);
}
void CBicycleFolder::StopThread()
{
EnterCriticalSection(&m_critSect);
m_running = false;
if (m_thread != NULL)
{
m_threadCmd = CT_EXIT;
SetEvent(m_doWork);
WaitForSingleObject(m_ptrReady, 10000);
CloseHandle(m_thread);
m_thread = NULL;
}
LeaveCriticalSection(&m_critSect);
}
LRESULT CALLBACK CBicycleFolder::WindowProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam) // second message parameter
{
CBicycleFolder *pThis = (CBicycleFolder *)GetWindowLong(hwnd, GWL_USERDATA);
switch (uMsg)
{
case WM_WMI_CONNECTED:
if(pThis != NULL)
{
IWbemServices *service = 0;
HRESULT hr = pThis->GetPtr(&service);
if(SUCCEEDED(hr))
{
pThis->RegisterEventSink(service);
pThis->EnumChildren(service);
// m_pResultData gets set when an onShow has happened. If set, the user already wants
// to see equipment but the connection was slower than the UI. Catchup now.
if(pThis->m_pResultData)
pThis->DisplayChildren();
// done with the marshaled service ptr.
service->Release();
service = 0;
}
}
else
{
TCHAR errMsg[255] = {0};
pThis->ErrorString((HRESULT)wParam, errMsg, 255);
MessageBox(hwnd, errMsg, _T("WMI Snapin Sample"), MB_OK|MB_ICONSTOP);
}
break;
case WM_REFRESH_EVENT:
if(pThis != NULL)
{
IWbemServices *service = 0;
HRESULT hr = pThis->GetPtr(&service);
if(SUCCEEDED(hr))
{
pThis->EmptyChildren();
pThis->EnumChildren(service);
pThis->DisplayChildren();
// done with the marshaled service ptr.
service->Release();
service = 0;
}
}
break;
} //endswitch
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
void CBicycleFolder::RegisterEventSink(IWbemServices *service)
{
//NOTE: this logic is from the Wmi documentation,
// "Security Considerations with Asynchronous Calls" so you can
// follow along.
// allocate the sink if its not already allocated.
if(m_pStubSink == 0)
{
CEventSink *pEventSink = 0;
IUnknown* pStubUnk = 0;
// create the 'real' sink.
pEventSink = new CEventSink(m_connectHwnd);
pEventSink->AddRef();
// create an unsecapp object.
CoCreateInstance(CLSID_UnsecuredApartment, NULL,
CLSCTX_LOCAL_SERVER, IID_IUnsecuredApartment,
(void**)&m_pUnsecApp);
// give the 'real' sink to the unsecapp to manage. Get a 'pStubUnk' in return.
m_pUnsecApp->CreateObjectStub(pEventSink, &pStubUnk);
// from that pUnk, get a wrapper to your original sink.
pStubUnk->QueryInterface(IID_IWbemObjectSink, (void **)&m_pStubSink);
pStubUnk->Release();
// release the 'real' sink cuz m_pStubSink "owns" it now.
long ref = pEventSink->Release();
}
HRESULT hRes = S_OK;
BSTR qLang = SysAllocString(L"WQL");
BSTR query = SysAllocString(L"select * from __InstanceCreationEvent where TargetInstance isa \"Bicycle\"");
// execute the query. For *Async, the last parm is a sink object
// that will be sent the resultset instead of returning the normal
// enumerator object.
if(SUCCEEDED(hRes = service->ExecNotificationQueryAsync(qLang, query,
0L, NULL,
m_pStubSink)))
{
OutputDebugString(_T("Executed filter query\n"));
}
else
{
OutputDebugString(_T("ExecQuery() failed\n"));
} //endif ExecQuery()
SysFreeString(qLang);
SysFreeString(query);
}
void CBicycleFolder::EmptyChildren(void)
{
if(m_pResultData)
{
HRESULT hr = m_pResultData->DeleteAllRsltItems();
int last = m_children.GetSize();
for (int n = 0; n < last; n++)
{
if (m_children[n] != NULL)
delete m_children[n];
}
m_children.RemoveAll();
}
}
bool CBicycleFolder::EnumChildren(IWbemServices *service)
{
IEnumWbemClassObject *pEnumBikes = NULL;
HRESULT hr = S_OK;
// get the list of bicycles...
if(SUCCEEDED(hr = service->CreateInstanceEnum((bstr_t)L"Bicycle",
WBEM_FLAG_SHALLOW,
NULL, &pEnumBikes)))
{
// NOTE: pBike MUST be set to NULL for Next().
IWbemClassObject *pBike = NULL;
CBicycle *pBikeInst = 0;
ULONG uReturned = 1;
while((SUCCEEDED(hr = pEnumBikes->Next(-1, 1, &pBike, &uReturned))) &&
(uReturned != 0))
{
// Add the bike...
pBikeInst = new CBicycle(this, pBike);
m_children.Add(pBikeInst);
// Done with this object. pBikeInst "owns" it now.
if(pBike)
{
pBike->Release();
// NOTE: pBike MUST be reset to NULL for Next().
pBike = NULL;
}
} // endwhile
// Done with this enumerator.
if (pEnumBikes)
{
pEnumBikes->Release();
pEnumBikes = NULL;
}
} // endif CreateInstanceEnum()
return SUCCEEDED(hr);
}
HRESULT CBicycleFolder::GetPtr(IWbemServices **ptr)
{
HRESULT hr = E_FAIL;
m_threadCmd = CT_GET_PTR;
SetEvent(m_doWork);
WaitForSingleObject(m_ptrReady, 10000);
if(ptr && m_pStream)
{
*ptr = 0;
hr = CoGetInterfaceAndReleaseStream(m_pStream,
IID_IWbemServices,
(void**)ptr);
}
return hr;
}
DWORD WINAPI CBicycleFolder::ThreadProc(LPVOID lpParameter)
{
CBicycleFolder *pThis = (CBicycleFolder *)lpParameter;
HRESULT hr = S_OK;
CoInitialize(NULL);
while(true)
{
WaitForSingleObject(pThis->m_doWork, -1);
switch(pThis->m_threadCmd)
{
case CT_CONNECT:
{
IWbemLocator *pLocator = 0;
HRESULT hr;
// Create an instance of the WbemLocator interface.
hr = CoCreateInstance(CLSID_WbemLocator,
NULL, CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *)&pLocator);
if(SUCCEEDED(hr))
{
hr = pLocator->ConnectServer(L"root\\Vehicles",// Network
NULL, // User
NULL, // Password
NULL, // Locale
0, // Security Flags
NULL, // Authority
NULL, // Context
&pThis->m_realWMI); // Namespace
// tell the callback the result of the connection.
if(pThis->m_connectHwnd)
PostMessage(pThis->m_connectHwnd, WM_WMI_CONNECTED, hr, 0);
}
}
break;
case CT_GET_PTR:
if(pThis->m_realWMI != NULL)
{
hr = CoMarshalInterThreadInterfaceInStream(IID_IWbemServices,
pThis->m_realWMI,
&(pThis->m_pStream));
}
SetEvent(pThis->m_ptrReady);
break;
case CT_EXIT:
if(pThis->m_realWMI != NULL)
{
pThis->m_realWMI->Release();
pThis->m_realWMI = 0;
}
SetEvent(pThis->m_ptrReady);
return 0;
break;
} //endswitch
} //endwhile(true)
return 0;
}
HRESULT CBicycleFolder::DisplayChildren(void)
{
// insert items here
RESULTDATAITEM rdi;
HRESULT hr = S_OK;
int last = m_children.GetSize();
CBicycle *pBike = 0;
// create the child nodes, then expand them
for (int n = 0; n < last; n++)
{
pBike = (CBicycle *)m_children[n];
ZeroMemory(&rdi, sizeof(RESULTDATAITEM) );
rdi.mask = RDI_STR | // Displayname is valid
RDI_IMAGE | // nImage is valid
RDI_PARAM;
rdi.nImage = pBike->GetBitmapIndex();
rdi.str = MMC_CALLBACK;
rdi.nCol = 0;
rdi.lParam = (LPARAM)pBike;
if(m_pResultData)
hr = m_pResultData->InsertItem( &rdi );
_ASSERT( SUCCEEDED(hr) );
}
return hr;
}
HRESULT CBicycleFolder::OnShow(IConsole *pConsole, BOOL bShow, HSCOPEITEM scopeitem)
{
HRESULT hr = S_OK;
IHeaderCtrl *pHeaderCtrl = NULL;
if (bShow)
{
hr = pConsole->QueryInterface(IID_IHeaderCtrl, (void **)&pHeaderCtrl);
_ASSERT( SUCCEEDED(hr) );
hr = pConsole->QueryInterface(IID_IResultData, (void **)&m_pResultData);
_ASSERT( SUCCEEDED(hr) );
// Set the column headers in the results pane
hr = pHeaderCtrl->InsertColumn(0, L"Name", LVCFMT_LEFT, 150);
_ASSERT( S_OK == hr );
hr = pHeaderCtrl->InsertColumn(1, L"Owner", LVCFMT_LEFT, 200);
_ASSERT( S_OK == hr );
if(m_pResultData)
{
hr = m_pResultData->DeleteAllRsltItems();
_ASSERT( SUCCEEDED(hr) );
if(!bExpanded)
{
hr = DisplayChildren();
}
pHeaderCtrl->Release();
}
}
return hr;
}
CIceSkateFolder::CIceSkateFolder()
{
for (int n = 0; n < NUMBER_OF_CHILDREN; n++) {
children[n] = new CIceSkate(n + 1);
}
}
CIceSkateFolder::~CIceSkateFolder()
{
for (int n = 0; n < NUMBER_OF_CHILDREN; n++)
if (children[n]) {
delete children[n];
}
}
HRESULT CIceSkateFolder::OnShow(IConsole *pConsole, BOOL bShow, HSCOPEITEM scopeitem)
{
HRESULT hr = S_OK;
IHeaderCtrl *pHeaderCtrl = NULL;
IResultData *pResultData = NULL;
if (bShow) {
hr = pConsole->QueryInterface(IID_IHeaderCtrl, (void **)&pHeaderCtrl);
_ASSERT( SUCCEEDED(hr) );
hr = pConsole->QueryInterface(IID_IResultData, (void **)&pResultData);
_ASSERT( SUCCEEDED(hr) );
// Set the column headers in the results pane
hr = pHeaderCtrl->InsertColumn( 0, L"Name ", 0, MMCLV_AUTO );
_ASSERT( S_OK == hr );
// insert items here
RESULTDATAITEM rdi;
hr = pResultData->DeleteAllRsltItems();
_ASSERT( SUCCEEDED(hr) );
if (!bExpanded)
{
// create the child nodes, then expand them
for (int n = 0; n < NUMBER_OF_CHILDREN; n++)
{
ZeroMemory(&rdi, sizeof(RESULTDATAITEM) );
rdi.mask = RDI_STR | // Displayname is valid
RDI_IMAGE | // nImage is valid
RDI_PARAM;
rdi.nImage = children[n]->GetBitmapIndex();
rdi.str = MMC_CALLBACK;
rdi.nCol = 0;
rdi.lParam = (LPARAM)children[n];
hr = pResultData->InsertItem( &rdi );
_ASSERT( SUCCEEDED(hr) );
}
}
pHeaderCtrl->Release();
pResultData->Release();
}
return hr;
}
//================================================
CSkateboardFolder::CSkateboardFolder()
{
for (int n = 0; n < NUMBER_OF_CHILDREN; n++) {
children[n] = new CSkateboard(n + 1);
}
}
CSkateboardFolder::~CSkateboardFolder()
{
for (int n = 0; n < NUMBER_OF_CHILDREN; n++)
if (children[n]) {
delete children[n];
}
}
HRESULT CSkateboardFolder::OnShow(IConsole *pConsole, BOOL bShow, HSCOPEITEM scopeitem)
{
HRESULT hr = S_OK;
IHeaderCtrl *pHeaderCtrl = NULL;
IResultData *pResultData = NULL;
if (bShow) {
hr = pConsole->QueryInterface(IID_IHeaderCtrl, (void **)&pHeaderCtrl);
_ASSERT( SUCCEEDED(hr) );
hr = pConsole->QueryInterface(IID_IResultData, (void **)&pResultData);
_ASSERT( SUCCEEDED(hr) );
// Set the column headers in the results pane
hr = pHeaderCtrl->InsertColumn( 0, L"Name ", 0, MMCLV_AUTO );
_ASSERT( S_OK == hr );
// insert items here
RESULTDATAITEM rdi;
hr = pResultData->DeleteAllRsltItems();
_ASSERT( SUCCEEDED(hr) );
if (!bExpanded) {
// create the child nodes, then expand them
for (int n = 0; n < NUMBER_OF_CHILDREN; n++) {
ZeroMemory(&rdi, sizeof(RESULTDATAITEM) );
rdi.mask = RDI_STR | // Displayname is valid
RDI_IMAGE | // nImage is valid
RDI_PARAM;
rdi.nImage = children[n]->GetBitmapIndex();
rdi.str = MMC_CALLBACK;
rdi.nCol = 0;
rdi.lParam = (LPARAM)children[n];
hr = pResultData->InsertItem( &rdi );
_ASSERT( SUCCEEDED(hr) );
}
}
pHeaderCtrl->Release();
pResultData->Release();
}
return hr;
}
//=====================================================
const _TCHAR *CSkateboard::GetDisplayName(int nCol)
{
static _TCHAR buf[128];
_stprintf(buf, _T("Skateboard #%d"), id);
return buf;
}
//=====================================================
const _TCHAR *CIceSkate::GetDisplayName(int nCol)
{
static _TCHAR buf[128];
_stprintf(buf, _T("Ice Skate #%d"), id);
return buf;
}
//========================================
CBicycle::CBicycle(CBicycleFolder *parent, IWbemClassObject *inst) :
m_parent(parent),
m_inst(inst)
{
if(m_inst)
m_inst->AddRef();
}
// helper values for calling GetDisplayName().
#define NAME_COL 0
#define OWNER_COL 1
#define COLOR_COL 2
#define MATERIAL_COL 3
const _TCHAR *CBicycle::GetDisplayName(int nCol)
{
static _TCHAR buf[128];
// Get the corresponding property for nCol. This is in-proc local copy
// so its pretty fast even if IWbemServices is a remote connection.
if(m_inst)
{
VARIANT pVal;
WCHAR propName[10] = {0};
VariantInit(&pVal);
switch(nCol)
{
case 0:
wcscpy(propName, L"Name");
break;
case 1:
wcscpy(propName, L"Owner");
break;
// these wont be needed by MMC but its makes this routine more useful
// internal to the class.
case 2:
wcscpy(propName, L"Color");
break;
case 3:
wcscpy(propName, L"Material");
break;
} //endswitch
if(m_inst->Get(propName, 0L, &pVal, NULL, NULL) == S_OK)
{
bstr_t temp(pVal);
_tcscpy(buf, (LPTSTR)temp);
}
VariantClear(&pVal);
} //endif (m_inst)
return buf;
}
bool CBicycle::GetGirls(void)
{
VARIANT_BOOL retval = VARIANT_FALSE;
// Here's how to get/interpret a VT_BOOL property.
if(m_inst)
{
VARIANT pVal;
if(m_inst->Get(L"Girls", 0L, &pVal, NULL, NULL) == S_OK)
{
retval = V_BOOL(&pVal);
}
VariantClear(&pVal);
} //endif (m_inst)
return (retval == VARIANT_TRUE);
}
void CBicycle::LoadSurfaces(HWND hwndDlg, BYTE iSurface)
{
HWND hCombo = GetDlgItem(hwndDlg, IDC_PEOPLE_SURFACE);
HRESULT hr = E_FAIL;
IWbemQualifierSet *qualSet = 0;
int selected = 0;
// qualifiers only exist on the class definition. m_inst is a instance.
IWbemClassObject *pClass = 0;
IWbemServices *service = 0;
if(SUCCEEDED(m_parent->GetPtr(&service)))
{
hr = service->GetObject((bstr_t)L"Bicycle", 0,0, &pClass, 0);
if(SUCCEEDED(hr = pClass->GetPropertyQualifierSet((bstr_t)L"Surface",
&qualSet)))
{
VARIANT vList;
VariantInit(&vList);
if(SUCCEEDED(hr = qualSet->Get((bstr_t)L"Values", 0, &vList, 0)))
{
SAFEARRAY *pma = V_ARRAY(&vList);
long lLowerBound = 0, lUpperBound = 0 ;
UINT idx = 0;
SafeArrayGetLBound(pma, 1, &lLowerBound);
SafeArrayGetUBound(pma, 1, &lUpperBound);
for(long x = lLowerBound; x <= lUpperBound; x++)
{
BSTR vSurface;
SafeArrayGetElement(pma, &x, &vSurface);
// NOTE: taking advantage of the bstr_t's conversion operators.
// really cleans up the code.
bstr_t temp(vSurface);
UINT idx = ComboBox_AddString(hCombo, (LPTSTR)temp);
ComboBox_SetItemData(hCombo, idx, x);
// is this the one we want to select?
if(iSurface == x)
{
selected = x;
}
} //endfor
VariantClear(&vList);
ComboBox_SetCurSel(hCombo, selected);
}
qualSet->Release();
qualSet = 0;
} //endif GetPropertyQualifierSet()
service->Release();
} //endif GetPtr()
}
const TCHAR *CBicycle::ConvertSurfaceValue(BYTE val)
{
// Convert a enum to a string using the Value{} array.
static TCHAR temp[128] = {0};
return temp;
}
HRESULT CBicycle::PutProperty(LPWSTR propName, LPTSTR str)
{
HRESULT hr = E_FAIL;
if(m_inst)
{
VARIANT pVal;
bstr_t temp(str);
VariantInit(&pVal);
V_BSTR(&pVal) = temp;
V_VT(&pVal) = VT_BSTR;
hr = m_inst->Put(propName, 0L, &pVal, 0);
VariantClear(&pVal);
} //endif (m_inst)
return hr;
}
HRESULT CBicycle::PutProperty(LPWSTR propName, BYTE val)
{
HRESULT hr = E_FAIL;
if(m_inst)
{
VARIANT pVal;
VariantInit(&pVal);
V_UI1(&pVal) = val;
V_VT(&pVal) = VT_UI1;
hr = m_inst->Put(propName, 0L, &pVal, 0);
VariantClear(&pVal);
} //endif (m_inst)
return hr;
}
HRESULT CBicycle::PutProperty(LPWSTR propName, bool val)
{
HRESULT hr = E_FAIL;
if(m_inst)
{
VARIANT pVal;
VariantInit(&pVal);
V_BOOL(&pVal) = (val?VARIANT_TRUE: VARIANT_FALSE);
V_VT(&pVal) = VT_BOOL;
hr = m_inst->Put(propName, 0L, &pVal, 0);
VariantClear(&pVal);
} //endif (m_inst)
return hr;
}
// handle anything special when the user clicks Apply or Ok
// on the property sheet. This sample directly accesses the
// operated-on object, so there's nothing special do to...
HRESULT CBicycle::OnPropertyChange()
{
return S_OK;
}
HRESULT CBicycle::OnSelect(IConsole *pConsole, BOOL bScope, BOOL bSelect)
{
IConsoleVerb *pConsoleVerb;
HRESULT hr = pConsole->QueryConsoleVerb(&pConsoleVerb);
_ASSERT(SUCCEEDED(hr));
// can't get to properties (via the standard methods) unless
// we tell MMC to display the Properties menu item and
// toolbar button, this wil give the user a visual cue that
// there's "something" to do
hr = pConsoleVerb->SetVerbState(MMC_VERB_PROPERTIES, ENABLED, TRUE);
pConsoleVerb->Release();
return S_OK;
}
// Implement the dialog proc
BOOL CALLBACK CBicycle::DialogProc(
HWND hwndDlg, // handle to dialog box
UINT uMsg, // message
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)
{
static CBicycle *pBike = NULL;
switch (uMsg)
{
case WM_INITDIALOG:
{
// catch the "this" pointer so we can actually operate on the object
pBike = reinterpret_cast<CBicycle *>(reinterpret_cast<PROPSHEETPAGE *>(lParam)->lParam);
SetDlgItemText(hwndDlg, IDC_PEOPLE_NAME, pBike->GetDisplayName(NAME_COL));
SetDlgItemText(hwndDlg, IDC_PEOPLE_COLOR, pBike->GetDisplayName(COLOR_COL));
SetDlgItemText(hwndDlg, IDC_PEOPLE_MATERIAL, pBike->GetDisplayName(MATERIAL_COL));
SetDlgItemText(hwndDlg, IDC_PEOPLE_OWNER, pBike->GetDisplayName(OWNER_COL));
Button_SetCheck(GetDlgItem(hwndDlg, IDC_PEOPLE_GIRLS),
(pBike->GetGirls()? BST_CHECKED: BST_UNCHECKED));
VARIANT pVal;
VariantInit(&pVal);
if(SUCCEEDED(pBike->m_inst->Get((bstr_t)L"Surface", 0L, &pVal, NULL, NULL)))
{
pBike->m_iSurface = V_UI1(&pVal);
pBike->LoadSurfaces(hwndDlg, pBike->m_iSurface);
VariantClear(&pVal);
}
}
break;
case WM_COMMAND:
// turn the Apply button on
if (HIWORD(wParam) == EN_CHANGE ||
HIWORD(wParam) == CBN_SELCHANGE)
SendMessage(GetParent(hwndDlg), PSM_CHANGED, (WPARAM)hwndDlg, 0);
break;
case WM_DESTROY:
// tell MMC that we're done with the property sheet (we got this
// handle in CreatePropertyPages
MMCFreeNotifyHandle(pBike->m_ppHandle);
break;
case WM_NOTIFY:
switch(((NMHDR *)lParam)->code)
{
case PSN_APPLY:
{
bool changed = false;
TCHAR temp[50] = {0};
HRESULT hr = S_OK;
HWND hWnd = GetDlgItem(hwndDlg, IDC_PEOPLE_NAME);
if(hWnd && Edit_GetModify(hWnd))
{
GetWindowText(hWnd, temp, 50);
changed |= SUCCEEDED(pBike->PutProperty(L"Name", temp));
}
hWnd = GetDlgItem(hwndDlg, IDC_PEOPLE_COLOR);
if(hWnd && Edit_GetModify(hWnd))
{
GetWindowText(hWnd, temp, 50);
changed |= SUCCEEDED(pBike->PutProperty(L"Color", temp));
}
hWnd = GetDlgItem(hwndDlg, IDC_PEOPLE_MATERIAL);
if(hWnd && Edit_GetModify(hWnd))
{
GetWindowText(hWnd, temp, 50);
changed |= SUCCEEDED(pBike->PutProperty(L"Material", temp));
}
hWnd = GetDlgItem(hwndDlg, IDC_PEOPLE_OWNER);
if(hWnd && Edit_GetModify(hWnd))
{
GetWindowText(hWnd, temp, 50);
changed |= SUCCEEDED(hr = pBike->PutProperty(L"Owner", temp));
}
hWnd = GetDlgItem(hwndDlg, IDC_PEOPLE_SURFACE);
if(hWnd)
{
BYTE newValue = ComboBox_GetCurSel(hWnd);
if(newValue != pBike->m_iSurface)
{
changed |= SUCCEEDED(pBike->PutProperty(L"Surface", newValue));
}
}
hWnd = GetDlgItem(hwndDlg, IDC_PEOPLE_GIRLS);
if(hWnd)
{
bool checked = (Button_GetState(hWnd) & BST_CHECKED);
bool wasChecked = pBike->GetGirls();
// did it change?
if(checked != wasChecked)
{
changed |= SUCCEEDED(pBike->PutProperty(L"Girls", checked));
}
}
// if any property changed, write it back to WMI.
if(changed)
{
IWbemServices *service = 0;
// dialogs run in their own thread so use the marshaling helper
// get a useable IWbemServices ptr.
// NOTE: IWbemClassObjects are in-proc so they DONT need to be
// marshaled.
if(SUCCEEDED(pBike->m_parent->GetPtr(&service)))
{
service->PutInstance(pBike->m_inst, WBEM_FLAG_CREATE_OR_UPDATE, 0, 0);
service->Release();
HRESULT hr = MMCPropertyChangeNotify(pBike->m_ppHandle, (long)pBike);
}
}
}
break;
} // endswitch (((NMHDR *)lParam)->code)
break;
} // endswitch (uMsg)
return DefWindowProc(hwndDlg, uMsg, wParam, lParam);
}
HRESULT CBicycle::HasPropertySheets()
{
// say "yes" when MMC asks if we have pages
return S_OK;
}
HRESULT CBicycle::CreatePropertyPages(IPropertySheetCallback *lpProvider, LONG_PTR handle)
{
PROPSHEETPAGE psp;
HPROPSHEETPAGE hPage = NULL;
// cache this handle so we can call MMCPropertyChangeNotify
m_ppHandle = handle;
// create the property page for this node.
// NOTE: if your node has multiple pages, put the following
// in a loop and create multiple pages calling
// lpProvider->AddPage() for each page.
psp.dwSize = sizeof(PROPSHEETPAGE);
psp.dwFlags = PSP_DEFAULT | PSP_USETITLE;
psp.hInstance = g_hinst;
psp.pszTemplate = MAKEINTRESOURCE(IDD_PROPPAGE_PEOPLE);
psp.pfnDlgProc = DialogProc;
psp.lParam = reinterpret_cast<LPARAM>(this);
psp.pszTitle = MAKEINTRESOURCE(IDS_BIKE_TITLE);
hPage = CreatePropertySheetPage(&psp);
_ASSERT(hPage);
return lpProvider->AddPage(hPage);
}
HRESULT CBicycle::GetWatermarks(HBITMAP *lphWatermark,
HBITMAP *lphHeader,
HPALETTE *lphPalette,
BOOL *bStretch)
{
return S_FALSE;
}
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